Smart Bone base on position

[MehdiZangenehBar]

It seems smart bone works only with rotation. Is possible to create expression based on source bone Position or Scale?

[Maestral]

If you're using the dropdown menu - Bone/Make smart bone dial - you'll have the rotation set and divided automatically but have you tried adding Position or Scale?

[synthsin75]

Yes, smart bones only work with bone rotation, but you can make rigs to control that rotation using another bone's scale or position.
Here's an example using a scaling bone: https://www.mediafire.com/file/4yu8wpez ... .moho/file

Position control would just be moving the targeted bone in that file, instead of scaling it's parent bone.